Home / 89,828.40-134,742.60-61,834.80

Finding the Fourth Proportional to 89,828.40, 134,742.60 and 61,834.80

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Solution

The fourth proportional to 89,828.40, 134,742.60 and 61,834.80 is: 92,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,828.40 : 134,742.60 = 61,834.80 : x
  2. Step 2: Convert to fraction form
    89,828.40/134,742.60 = 61,834.80/x
  3. Step 3: Cross multiply
    89,828.40x = 134,742.60 × 61,834.80
  4. Step 4: Simplify right side
    89,828.40x = 8,331,781,722.48
  5. Step 5: Solve for x
    x = 8,331,781,722.48/89,828.40
  6. Step 6: Final answer
    x = 92,752.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.